[PATCH v3] Add new case for stress test

[David Smith]

On 01/13/2016 02:01 AM, Zhou Wenjian wrote:
> 	* testsuite/systemtap.stress/parallel_exec.exp: New test case

I've checked this in as commit 3453e68. Note that I ended up making
several changes:

- I got a consistent failure from the test when the test was run the
first time (before the script was cached). I solved this by 2 methods.
(1) I added a timeout value to the loop that increments 'num_sum'; and
(2) I moved running the script once to get the number of output lines by
1 script invocation before the loop. This allows the loop to always used
the cached script module.

- I changed 'grep \[open|close\]' to 'grep {\(open\|close\)}'. An
expression using brackets - '[' and ']' - is a list of characters to
look for. So, your regexp would have matched any combination of those
letters.

- I added your comments about the purpose behind the ending '$num *
$process_num != $num_sum' logic.

Thanks for the test.

-- 
David Smith
dsmith@redhat.com
Red Hat
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